“数”和“形”是数学中两个最基本的概念,它们既是对立的,又是统一的,每一个几何图形中都蕴含着与它们的形状、大小、位置密切相关的数量关系;反之,数量关系又常常可以通过几何图形做出直观的反映和描述。数形结合,就是通过数与形之间的对应和转化来解决数学问题,它包含以形助数和以数解形两个方面。利用它可使复杂问题简单化,抽象问题具体化,它兼有数的严谨与形的 “Number ” and “Shape ” are the two most basic concepts in mathematics. They are both contradictory and unified. Each geometric figure contains a closely related to their shape, size and position Quantitative relationship; on the contrary, the relationship between quantity and often can be intuitively reflected through the geometry and description. Combination of numbers, that is, through the number and shape between the correspondence and conversion to solve mathematical problems, which includes the form of aids and the number of two-dimensional solution. It can be used to simplify complex issues, abstract issues specific, it combines both the number of rigorous and